Migrate the IndexedDB backend from Blink to Chromium

content/browser/indexed_db/indexed_db_callbacks_wrapper.h

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_WRAPPER_H_
+#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_WRAPPER_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/browser/indexed_db/indexed_db_database.h"
+#include "content/browser/indexed_db/indexed_db_database_error.h"
+#include "content/common/indexed_db/indexed_db_key.h"
+#include "content/common/indexed_db/indexed_db_key_path.h"
+#include "third_party/WebKit/public/platform/WebIDBCallbacks.h"
+
+namespace WebKit {
+class WebIDBCallbacks;
+}
+
+namespace content {
+class IndexedDBCursor;
+class WebIDBDatabaseImpl;
+
+class IndexedDBCallbacksWrapper
+    : public base::RefCounted<IndexedDBCallbacksWrapper> {
+ public:
+  static scoped_refptr<IndexedDBCallbacksWrapper> Create(
+      WebKit::WebIDBCallbacks* callbacks) {
+    return make_scoped_refptr(new IndexedDBCallbacksWrapper(callbacks));
+  }
+
+  virtual void OnError(scoped_refptr<IndexedDBDatabaseError> error);
+  // From IDBFactory.webkitGetDatabaseNames()
+  virtual void OnSuccess(const std::vector<string16>& string);
+  // From IDBObjectStore/IDBIndex.openCursor(),
+  // IDBIndex.openKeyCursor()
+  virtual void OnSuccess(scoped_refptr<IndexedDBCursor> cursor,
+                         const IndexedDBKey& key,
+                         const IndexedDBKey& primary_key,
+                         std::vector<char>* value);
+  // From IDBObjectStore.add()/put(), IDBIndex.getKey()
+  virtual void OnSuccess(const IndexedDBKey& key);
+  // From IDBObjectStore/IDBIndex.get()/count(), and various methods
+  // that yield null/undefined.
+  virtual void OnSuccess(std::vector<char>* value);
+  // From IDBObjectStore/IDBIndex.get() (with key injection)
+  virtual void OnSuccess(std::vector<char>* data,
+                         const IndexedDBKey& key,
+                         const IndexedDBKeyPath& key_path);
+  // From IDBObjectStore/IDBIndex.count()
+  virtual void OnSuccess(int64 value);
+
+  // From IDBFactor.deleteDatabase(),
+  // IDBObjectStore/IDBIndex.get(), IDBObjectStore.delete(),
+  // IDBObjectStore.clear()
+  virtual void OnSuccess();
+
+  // From IDBCursor.advance()/continue()
+  virtual void OnSuccess(const IndexedDBKey& key,
+                         const IndexedDBKey& primary_key,
+                         std::vector<char>* value);
+  // From IDBCursor.advance()/continue()
+  virtual void OnSuccessWithPrefetch(
+      const std::vector<IndexedDBKey>& keys,
+      const std::vector<IndexedDBKey>& primary_keys,
+      const std::vector<std::vector<char> >& values);
+  // From IDBFactory.open()/deleteDatabase()
+  virtual void OnBlocked(int64 /* existing_version */);
+  // From IDBFactory.open()
+  virtual void OnUpgradeNeeded(int64 /* old_version */,
+                               scoped_refptr<IndexedDBDatabase> db,
+                               const IndexedDBDatabaseMetadata& metadata);
+  virtual void OnSuccess(scoped_refptr<IndexedDBDatabase> db,
+                         const IndexedDBDatabaseMetadata& metadata);
+  virtual void SetDatabaseCallbacks(
+      scoped_refptr<IndexedDBDatabaseCallbacksWrapper> database_callbacks);
+
+ private:
+  explicit IndexedDBCallbacksWrapper(WebKit::WebIDBCallbacks* callbacks);
+  virtual ~IndexedDBCallbacksWrapper();
+  friend class base::RefCounted<IndexedDBCallbacksWrapper>;
+  scoped_ptr<WebIDBDatabaseImpl> web_database_impl_;
+  scoped_ptr<WebKit::WebIDBCallbacks> callbacks_;
+  scoped_refptr<IndexedDBDatabaseCallbacksWrapper> database_callbacks_;
+  bool did_complete_;
+  bool did_create_proxy_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_WRAPPER_H_